.page_container_card_box {
    .page_container_card_list {
        .page_container_card_item {
            font-size: 16px;
            color: #333;

            .page_container_card_title {
                font-size: 26px;
                font-weight: bold;
                margin: 20px 0;
                border-bottom: 1px solid #ccc;
            }

            .page_container_card_son_title {
                font-size: 18px;
                color: #1b3051;
                margin: 14px 0;
            }

            .page_container_card_content {
                line-height: 1.6;
            }

            ul {
                padding-left: 20px;

                li {
                    list-style: disc;
                }
            }
        }
    }

    .mb20 {
        margin-bottom: 1.5em;
    }

    .mb10 {
        margin-bottom: 0.7em;
    }
}